An instrument which measures the ratio of electrical power with reference to a predetermined value and is calibrated in units of sound intensity, usually decibels. The value may be expressed by means of a pointer and calibrated dial or a digital readout display. if other than audio frequency ranges, see meter, noise level.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 5975-00-133-7436
NSN 5945-00-846-0832
NSN 5985-00-516-2373
NSN 6610-00-251-0369
NSN 6685-01-630-7102
NSN 6645-01-081-6399
NSN 5920-00-103-2029
NSN 5950-00-203-5809
NSN 6685-00-855-6525
NSN 5835-00-284-0882
NSN 5855-01-550-3715
NSN 5975-00-993-8156